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The purpose of this research is to develop a control law for a four wheel direct drive electric vehicle to improve the vehicle stability and handling performance. The control law is to calculate the required torque from the in-wheel motors of the vehicle to control the vehicle sideslip angle and yaw rate. For the simulation, a vehicle dynamics model is derived, which contains a three degree of freedom...
In today's data centers, precisely controlling server power consumption is an essential way to avoid system failures caused by power capacity overload or overheating due to increasingly high server density. While various power control strategies have been recently proposed, existing solutions are not scalable to control the power consumption of an entire large-scale data center, because these solutions...
The demand for high performance information dissemination is increasing in many applications, such as e-commerce and security alerting systems. These applications usually require that the desired information be matched between sources and sinks based on established subscriptions in a timely manner while a maximal system throughput be achieved to find more matched results. Existing work primarily focuses...
Real-time information dissemination is of increasing importance to our society. Existing work mainly focuses on delivering information from sources to sinks in a timely manner based on established subscriptions, with the assumption that those subscriptions are persistent. However, the bottleneck of many real-time information dissemination systems is actually the matching process to continuously reevaluate...
Power control is becoming a key challenge for effectively operating a modern data center. In addition to reducing operation costs, precisely controlling power consumption is an essential way to avoid system failures caused by power capacity overload or overheating due to increasing high-density. Control-theoretic techniques have recently shown a lot of promise on power management thanks to their better...
The structure of an autonomous underwater vehicle is introduced, its dynamic model is established and simulation result is presented. Its stable and reliable control system design is discussed in detail from main control unit, communication unit to motor driving unit. A double-server, warm-cold backup scheme is used to design the control system of the AUV in order to make it more tolerant and reliable,...
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